isoglossia:
Undersea interloper or Aesculus Hippocastanum L. Progenitor?
isoglossia:
Blossoms down
isoglossia:
Horsechestnut blossoms
isoglossia:
Fall
isoglossia:
Conker
isoglossia:
Dangle
isoglossia:
Conker poppin'
isoglossia:
Conker holdover
isoglossia:
Conker-tree seedling
isoglossia:
Conker blossoms closer
isoglossia:
Conker tree leaves overlap
isoglossia:
Conker blossoms tiny